drivers/staging/vt6655/tbit.h

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *
  20  * File: tbit.h
  21  *
  22  * Purpose: Bit routines
  23  *
  24  * Author: Tevin Chen
  25  *
  26  * Date: May 21, 1996
  27  *
  28  */
  29
  30 #ifndef __TBIT_H__
  31 #define __TBIT_H__
  32
  33 #include "ttype.h"
  34
  35 /*---------------------  Export Definitions -------------------------*/
  36
  37 /*---------------------  Export Types  ------------------------------*/
  38
  39 /*---------------------  Export Macros ------------------------------*/
  40
  41 // test single bit on
  42 #define BITbIsBitOn(tData, tTestBit)                \
  43     (((tData) & (tTestBit)) != 0)
  44
  45 // test single bit off
  46 #define BITbIsBitOff(tData, tTestBit)               \
  47     (((tData) & (tTestBit)) == 0)
  48
  49
  50 #define BITbIsAllBitsOn(tData, tTestBit)            \
  51     (((tData) & (tTestBit)) == (tTestBit))
  52
  53 #define BITbIsAllBitsOff(tData, tTestBit)           \
  54     (((tData) & (tTestBit)) == 0)
  55
  56 #define BITbIsAnyBitsOn(tData, tTestBit)            \
  57     (((tData) & (tTestBit)) != 0)
  58
  59 #define BITbIsAnyBitsOff(tData, tTestBit)           \
  60     (((tData) & (tTestBit)) != (tTestBit))
  61
  62 /*---------------------  Export Classes  ----------------------------*/
  63
  64 /*---------------------  Export Variables  --------------------------*/
  65
  66 /*---------------------  Export Functions  --------------------------*/
  67
  68
  69
  70 #endif // __TBIT_H__
  71
  72
  73